What is the difference between abstract class and interface?
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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- What is the difference between abstract class and interface?
- Assume you have three interfaces I1, I2 & I3. The definition of these three interfaces is given below:-
- I1 : Contains method called method_I1();
- I2 : Contains method called method_I2(); and inherits I1.
- I3 : Contains method called method_I3();
Now, design 5 classes that implement the following scenarios:-
- Class A: Contains a method called method_A() that prints “Inside A”.
- Class B: Inherits class A and implements Interface I2
- Class C: Implements Interface I1 and I3
- Class D: Is type abstract and Implements Interface I2
Class E: Inherits class D
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